dulosisPronunciation: /djʊːˈləʊsis/Definition of dulosis noun [mass noun] Entomology the practice by slave-making ants of capturing the pupae of other ant species and rearing them as workers of their own colony. Derivatives dulotic adjective Origin: early 20th century: from Greek doulōsis 'slavery', from doulos 'slave'dulosis in other Oxford dictionaries Definition of dulosis in the US English dictionary